The quantities and types of hazardous chemicals being used, handled or stored at your workplace classify it as either:
- a hazardous chemical workplace
- a manifest quantity workplace (MQW) or
- a major hazard facility (MHF).
This then determines what you must do about safety at your workplace.
As explained below, most of the duties are required of the Person Conducting the Business or Undertaking (PCBU). However, others with obligations include workers, importers, manufacturers, and suppliers.